El papeleo explicado
Master plan (1/500): what it is, why it matters, how to obtain it
What is a master plan (1/500) in Vietnam property?
Master plan (1/500) — key facts
Document- Vietnamese name
- Quy hoạch chi tiết xây dựng tỷ lệ 1/500
- The approval itself is titled 'Quyết định phê duyệt Quy hoạch chi tiết xây dựng tỷ lệ 1/500' — commonly shortened to 'quy hoạch 1/500'
- Issued by
- The city or provincial People's Committee (for Hanoi: UBND Thành phố Hà Nội)
- Based on technical review by the Department of Planning & Architecture; signed by a Vice Chairman of the People's Committee
- When you see it
- During project due diligence, before any reservation deposit
- It already exists once a project is approved for sale — you verify it, you do not request it
- Typical cost to you
- €0 to obtain — independent architect or lawyer verification typically €120–€350 (≈3.3M–9.6M VND)
- Validity
- Tied to the life of the approved project
- Superseded by any later adjustment decision (điều chỉnh quy hoạch) — always confirm you hold the current version
- Governing law
- Construction Law 2014 (amended 2020) · Decree 44/2015/NĐ-CP
- A separate approval track from the ownership rules (Housing Law 2023, Land Law 2024) our desk cites elsewhere in this cluster
- Required for
- Any project selling apartments or villas within the 30% foreign-ownership quota
- Confirms the plot is genuinely zoned for residential use, not agricultural or industrial land
- Language
- Issued in Vietnamese only
- Ask your architect for a plain-English summary of the key indicators rather than a full certified translation
Specimen: the 1/500 master plan approval decision
What the master plan actually shows
A 1/500 master plan is not marketing material — it is the local government's binding decision on what can legally be built on a given plot. It exists before a single unit is sold, drawn up by a licensed planning consultancy on the developer's behalf and approved by the city or provincial People's Committee after technical review. Everything the sales gallery shows you — the tower's shape, the number of floors, the pool, the green space — should trace back to the indicators fixed in this one document.
Four sets of fields matter most to a foreign buyer. First, the investor and project name: the entity named in the decision must be the same one selling you the apartment, not an affiliate with a similar name. Second, the zoning designation — the plot must be classified as urban residential or mixed residential-commercial land, never agricultural or industrial land awaiting conversion. Third, the building height and density: a maximum number of floors, a building-density ceiling (the share of the plot the building may cover) and a floor-area ratio, all of which cap how large the finished project can legally be. Fourth, the land-use balance between residential blocks, green space and water, roads, and public or communal facilities — the ratio that determines whether the amenities marketed to you are a planning obligation or simply a rendering.
Because these indicators can later be revised through a formal adjustment decision (điều chỉnh quy hoạch), the version your architect checks needs to be the current one in force, not the plan shown in the original marketing brochure.
How a foreign buyer verifies the master plan
⏱ 1–2 weeks, completed before you sign
You never apply for a 1/500 master plan yourself — it is issued to the developer at project approval, long before individual units are marketed. Your task, working with an independent architect or lawyer, is to confirm it exists, that it covers the exact block and phase you are buying into, and that what is actually being built matches what was approved. These are the checkpoints our desk works through before any money changes hands, in the order we recommend.
- 1
Request the plan reference and decision number
⏱ Before reservation
Ask the sales team, in writing rather than by phone, for the approval decision number, the dossier reference, and confirmation that the plan covers the exact block and phase named on your reservation form — not a neighbouring plot or an earlier version of the project.
DocumentsApproval decision number · Dossier / QR reference
⚠A sales office that cannot produce a decision number, or produces one for a different plot, is a reason to pause before paying anything.
→ architects - 2
Have an architect verify the approved indicators
⏱ 3–7 working days◈ ≈€120–€350 (≈3.3M–9.6M VND)
An independent architect or planning consultant cross-checks the height, building density, floor-area ratio and zoning designation on the decision against what is actually being marketed and built, and confirms the plan directly with the city's Department of Planning & Architecture rather than relying only on the sales brochure.
DocumentsCertified copy or extract of the decision · Project's marketing floor plans, for comparison
- 3
Check for later adjustment decisions
⏱ Same engagement as Step 2
Master plans can be legally revised after initial approval — an extra tower, a taller block or reduced green space are sometimes introduced through a follow-up adjustment decision. Ask specifically whether any adjustment (điều chỉnh quy hoạch) has been filed since the version used in your sales brochure, and request it if so.
⚠A project marketed on an outdated, more generous plan than the one currently in force is a common source of disputes over promised amenities after handover.
- 4
Confirm public disclosure of the plan
⏱ Same visit
Approved plans are meant to be published on the municipal planning-disclosure portal (công khai quy hoạch). Ask your architect to confirm the plan is publicly listed there — an approved plan that was never disclosed, sometimes referred to as 'quy hoạch treo', is itself a warning sign about the project's standing.
- 5
Keep a verified copy in your purchase file
⏱ Ongoing
Once checked, keep a copy of the decision — with your architect's short verification note — alongside your reservation agreement and, later, the Sale and Purchase Agreement. It becomes part of the record your lawyer relies on if a height or density dispute ever arises after handover.
Architects and planning consultants who verify master plans for foreign buyers
ODDO Architects
★Architecture résidentielle sur-mesure, maisons urbaines, rénovation, paysage
Hanoi · Anglais, Tchèque, Vietnamien
T3 Architects
★Architecture durable, villas contemporaines, design d'intérieur (approche bioclimatique)
Ho Chi Minh City · Français, Anglais, Vietnamien
Vo Trong Nghia Architects (VTN Architects)
★Cabinet d'architecture primé (RIBA, ARCASIA, World Architecture Awards) fondé par Vo Trong Nghia. Résidentiel haut de gamme, hôtellerie/resorts, bureaux, éducation, urbanisme; signature bambou/matériaux naturels et design durable.
Ho Chi Minh City (bureau également à Hanoi) · EN, VN, ZH
KIENTRUC O
★Architecture & design d'intérieur résidentiel de prestige, rénovation de villas
Ho Chi Minh City · Anglais, Vietnamien
Frequently asked questions
What is a 1/500 master plan in Vietnam property?
It is the city or provincial People's Committee's approval decision for a project's detailed construction plan at 1:500 scale — fixing the zoning, building height, density and land-use balance the developer must build to. It is issued to the developer at project approval, not to individual buyers.
Do I need to obtain a master plan myself as a buyer?
No. The master plan already exists once a project is approved for sale; you do not apply for one. Your only task is to have an architect or lawyer verify it covers your exact building and phase before you commit a deposit.
How can I check a copy of a project's master plan?
Ask the sales team, in writing, for the approval decision number and dossier reference, then have an architect confirm it against the municipal planning-disclosure portal or directly with the Department of Planning & Architecture. Our annotated specimen above shows the exact fields to request.
Can a developer change the master plan after I buy?
Yes, within limits. Indicators such as height or density can be revised through a formal adjustment decision after initial approval. This is precisely why our desk checks for adjustment filings, not just the original plan used in early marketing.
What does 'vượt tầng' mean, and why does it matter?
Vượt tầng means building above the approved maximum height — one of the most common planning irregularities in Hanoi high-rises. Comparing the marketed number of floors against the approved decision is a core step in verifying any tower purchase.
Is the master plan the same as the Pink Book or a land-use certificate?
No. The master plan approves what the developer may build on the site; your Pink Book is the ownership certificate you receive later, once you have paid and registered your own unit. The two documents sit at opposite ends of the purchase timeline.
Is this the same as Vietnam's national 'Master Plan 2021–2030'?
No. This page covers the project-level 1/500 detailed construction plan used in individual property purchases. Vietnam's national Master Plan for 2021–2030 is a separate, macro socio-economic and land-use planning document with no direct bearing on a single project's building file.
Sources
- Construction Law 2014 (Law No. 50/2014/QH13), amended in 2020 — the primary framework governing detailed construction planning, including 1/500 master plans (cited by reference; no verified official English-language URL available).
- Decree 44/2015/NĐ-CP, detailing regulations on construction planning (cited by reference; no verified official English-language URL available).
- Housing Law 2023 (27/2023/QH15) — the separate ownership-rights framework referenced alongside the master plan throughout this cluster.
- Land Law 2024 (31/2024/QH15) — governs the land-use rights underlying any approved master plan.
- Ministry of Construction (Bộ Xây dựng) — national authority overseeing construction planning and urban development, above the city or provincial People's Committees that approve 1/500 master plans.
Have a project's master plan checked before you reserve
Our Hanoi desk works with independent architects who verify master plans, height and density indicators and adjustment history before you pay a deposit — an independent second opinion within 24 hours.